Which geological process accelerates when thermokarst lakes form in arctic permafrost regions?

💡 Explanation

When thermokarst lakes form, thawing permafrost releases organic matter that undergoes anaerobic decomposition by methanogens, leading to accelerated methane production, amplifying greenhouse warming. Therefore, methanogenesis becomes exacerbated rather than isostatic rebound, halocline formation or sediment transport which are affected less significantly by permafrost thaw.

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